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<?php |
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namespace Spinzar\Firewall\Middleware; |
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use Spinzar\Firewall\Abstracts\Middleware; |
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use Spinzar\Firewall\Events\AttackDetected; |
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use Jenssegers\Agent\Agent as Parser; |
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class Agent extends Middleware |
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{ |
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protected $parser; |
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public function check($patterns) |
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{ |
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$status = false; |
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$this->parser = new Parser(); |
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if ($this->isMalicious()) { |
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$status = true; |
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} |
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if (!$status && $this->isBrowser()) { |
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$status = true; |
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} |
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if (!$status && $this->isPlatform()) { |
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$status = true; |
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} |
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if (!$status && $this->isDevice()) { |
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$status = true; |
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} |
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if (!$status && $this->isProperty()) { |
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$status = true; |
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} |
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if ($status) { |
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$log = $this->log(); |
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event(new AttackDetected($log)); |
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} |
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return $status; |
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} |
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protected function isMalicious() |
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{ |
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$agent = $this->parser->getUserAgent(); |
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if (empty($agent) || ($agent == '-') || strstr($agent, '<?')) { |
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return true; |
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} |
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$patterns = [ |
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'@"feed_url@', |
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'@}__(.*)|O:@', |
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'@J?Simple(p|P)ie(Factory)?@', |
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]; |
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foreach ($patterns as $pattern) { |
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if (!preg_match($pattern, $agent) == 1) { |
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continue; |
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} |
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return true; |
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} |
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return false; |
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} |
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protected function isBrowser() |
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{ |
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if (!$browsers = config('firewall.middleware.' . $this->middleware . '.browsers')) { |
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return false; |
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} |
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if (!empty($browsers['allow']) && !in_array((string) $this->parser->browser(), (array) $browsers['allow'])) { |
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return true; |
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} |
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if (in_array((string) $this->parser->browser(), (array) $browsers['block'])) { |
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return true; |
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} |
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return false; |
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} |
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protected function isPlatform() |
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{ |
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if (!$platforms = config('firewall.middleware.' . $this->middleware . '.platforms')) { |
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return false; |
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} |
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if (!empty($platforms['allow']) && !in_array((string) $this->parser->platform(), (array) $platforms['allow'])) { |
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return true; |
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} |
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if (in_array((string) $this->parser->platform(), (array) $platforms['block'])) { |
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return true; |
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} |
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return false; |
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} |
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protected function isDevice() |
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{ |
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if (!$devices = config('firewall.middleware.' . $this->middleware . '.devices')) { |
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return false; |
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} |
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$list = ['Desktop', 'Mobile', 'Tablet']; |
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foreach ((array) $devices['allow'] as $allow) { |
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if (!in_array($allow, $list)) { |
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continue; |
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} |
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$function = 'is' . ucfirst($allow); |
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if ($this->$function()) { |
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continue; |
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} |
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return true; |
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} |
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foreach ((array) $devices['block'] as $block) { |
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if (!in_array($block, $list)) { |
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continue; |
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} |
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$function = 'is' . ucfirst($block); |
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if (!$this->$function()) { |
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continue; |
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} |
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return true; |
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} |
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return false; |
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} |
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protected function isProperty() |
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{ |
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if (!$agents = config('firewall.middleware.' . $this->middleware . '.properties')) { |
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return false; |
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} |
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foreach ((array) $agents['allow'] as $allow) { |
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if ($this->parser->is((string) $allow)) { |
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continue; |
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} |
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return true; |
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} |
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foreach ((array) $agents['block'] as $block) { |
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if (!$this->parser->is((string) $block)) { |
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continue; |
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} |
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return true; |
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} |
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return false; |
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} |
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170
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} |
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171
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spinzar /
firewall
